Printing machine



Oct. 23, 1928. 1,688,470

5. OHARA PRINTING MACHINE Filed July 8, 1927 Patented Get. 23, 1928.

UNITED STATES PATENT OFFICE.

SKIDMORE onAnmor WALTI-IYAM, nssnonusnrrs, AssrGNoR r0 .OYHARA WALTHAM COMPANY, or WALTHAM, MASSACHUSETTS, A CORPORATION or MASSACHUSETTS.

PRINTING MACHINE.

Application filed July 8',

The invention relates to an improvement in machines for printing. It is especially applicable to machin'es for printing ,or embossing on; glass china porcelain, enamelled goods or other frangible articles but it is not limited to use in printing onarticles of that particuupturned portion 20 having at its upper end lar character. It relates especially :to .machines-in which the printing member has a surface on which the character, marking or design is printed or embossed by a diein such manner that the printing member is adapted to transfer said design to the work,

The invention will be fully understood from the following description when taken in connection with the accompanying drawings andthe novel features thereof will be pointed out and clearly defined in. the claims at the close of this specification.

In the drawings:

Fig. 1 isa fragmentaryside elevation partly in, diagram of a machine embodying: the invention, showing. the printing member in position to be operated to engage the die Fig. 2 is a similar view showing the printing member after having received the mpression from the die and turned into positlon to beope'rated to print the design on the work. 3 is a section on 1ine33, Fig. 1. Referring to the drawings, there is shown at 10 a portion of the frame to hold. the working parts.

derside of which is mounted a die 12 on which is engraved or embossed the design of whatever nature is intended tobe printed upon the work. Said carrier 11 is slidable'horizontally to bring the die into operative position as shown in Fig. .1 and also to moveit backward from said position at the proper time to bring the die into engagement with the inking roll 13. Any suitable mechanism may be employed for giving reciprocating movement to the diecarrier.

the said carrier has a portion formed with teeth 14 on its underside engagedby a pinion 15 which may be operated by any suitable means to move the slide carrier forward' and back. Preferably a wiper 16 is provided to wipe off the surplus ink from the die.

A bracket 17 is secured to the frame having lowerbifurcated portion forming downwardly extending arms 18, in which are journalled a rocker shaft 19 on which are mounted respectively an arm 20 Which carries Slidably mounted in a guideway in the frame 10 is a die carrier 11 011. the un- I As shown'in the drawin s a m Fig. 1, the said pln will'enga-ge with the 1827. Serial No. 204,271-

the printing member and an operating arm or lever 21 by which the printing memberis actu ated. Said two arms 20 and 21 are respectively made fast to the shaft 19 by the set screws 22 a11d23. J

Thejarm 20 is of-angular shape having an a holder 9 for the printing member 24. Prefablein: aguideway 28 in the frame so that the i work holder may be moved into'operative positionfor. the workvto receive the impression from the printing member and may be moved out of such position. after being printed to permit the printing member to be swung around to engage the die. In Fig. 1 the work holder is shown out of operative position and the die in position to be engaged by the printing member.

It is desirable that means should be provided for locking the shaft on which the printing memberand the operating handle are mounted in the positions shown in full lines in Figs. 1 and 2 so that when desired they may be left in either of saidpositions temporarily without being displaced. For this purpose the arm 18 is formed with a socket 29 in which H is mounted a spring seated pin 30. The hub 31 of the arm 20 which carries the printing memberis formed withtwo-recesses a and b diametrically opposite each other with which respectively said spring pin 30is adapted to engage when said arm is in the positions shown in Figs. 1 and 2. When it is in the position shown recess a'and when it is in the position shown 1n F1g.2,-sa1d pin Wl'll engage with therecess b. On account of the-rounded end of the pin; the pin will be easily disengaged .when the said shaft and arm 20have been rotated far enough to bring-the pin 30 into alinem'ent with either. one of said recesses.

from said recesses. whenever a slight 'pres- In operation, assuming that the die 12 has already been inked andbrought into operative position as shown in Fig. 1, the lever 21 is pushed downward to bring the printing member 24 into the dotted line position in contact with the die so as to receive the design printed or otherwise transferred thereto by the die in such manner that the said printing member may transfer the de-' sign to the work. The lever 21 will then be operated todepressjthe printing member from the-dotted line position shown in Fig. 1 intothe full line position shown in Fig. 2, thereby rotating the shaft and bringing the printing member into the elevated position above the plane of "the work. The work.

holder 25 will then be moved to the"right .from the position shown in Fig. 1 into the position shown in Fig. 2 to bring the work holder and work into alinement with the printing member,the work having previously been positioned on the Work holder; The lever 2], will then be pushed up into the position shown in dotted lines in Fig. 2, thereby moving the arm 20 and the printing member downward to print the design upon the work. The operating lever will then be moved from the dottedline position to'the full line position shown in Fig. 2 where it will be locked by the pin-30 and the work holder will be 'moved again to the left into the position shown in Fig. 1. In the meantime the die carrier will have been moved to the right so as to be inked and then moved back again to the position shown in Fig. 1, the work holder being at that time out of the way of the printing member. The operating lever may then be actuated to move the printing member-upinto contact with the die to be again inked by the die ready for another printing operation.

i What I claim is: V 1. In a printing machine a die, a' work support, .a printing member mountedon an arm pivoted intermediate the die and the work support, a'lever whereby thesaid arm may be swung on its pivot to move the printing member in acurved path in a vertical plane, said die and work support being so positioned that the lever is operative to press the printing memberup against the die and to move the printing member around to position'where it is operative to press the printing member down against the work onthe work support;

2. In a printing machine, a die, a work support, a printing member mounted on an arm pivoted intermediate the die and the work support, a lever whereby'the said 'arm may be swung on its pivot to move the printing memberin a curved path in a vertical plane, said die. and work supportbeing so positioned thatthelever is operative'to press the printing member up against the die and to move the printmg member around to posi- I in a curved tion Where it is operative to press the print' ing memberdown against the work on the 1 work support, said work support being mov able out of operativeposition with relation to the printing member to permitturning of the printing member arm on its pivotfrom operative position with relation to the work and to permit turning of the printing memher back again into operative position with relation to the die. I

3. In a printing machine, a die, a work support, a: printing member mounted'on an arm pivoted intermediate the die and the work support, a lever whereby the said arm ma be swun on its ivot to move the rint-:

ing member in a curved path in a vertical lane said die and work su ort bein so' i 23 relation to the die, and means for locking the printing member arm so as to hold the printing member in a stationary position away from the die'and away from the Work sup port.-

4. Ina printing machine a die, a work support, a printing member mounted on an arm which is pivoted 'on a horizontal axis, said arm be rotatable on said axis to move the printing member up against the die and to swing around into another position where it is operative to press the printing member down against the work on said support.

. In a printing machine, an arm rotatable on a horizontal axis, aprinting member inountedon said arm at some distance from the axis ot'rotation whereby the rotation of said arm. rotates said printing member in a circular path in a vertical plane and carries it from one side to the other of said aXis,-a die and a worksupport on opposite sides of said axis of rotationfand means whereby said arm maybe actuated to press the, printing n iemberfagainst-the die when the printing member is on one side of said and to bring the printing member into engagement withthe work on the opposite side of said axis. 1

6, In a printing machine, an arln pivoted to swing in a vertical plane, a printing inember supported on said arm at some distance from the pivot whereby when said arm is rotated said printing member will be moved path in a vertical plane, a lever adapted to actuatefsaid arm and printing 'men ber, a movable die and am'ovable work men support, said die and work support being so disposed with relation to each other and to the arm which carries the printing member that the lever may be operated to press the printing member up against the die to re ceive the design therefrom, said lever being operable toswing the printing member to a position on the opposite side of the pivot and press the printing member down upon the work mounted on said work support, said die being movable to and away from operative position with relation to the printing "said work support being movable out of op erative position to permit the printing member to be swung around into operative position with relation to the die. I

In testimony whereof I affix my signature.

SKIDMORE OHARA. 

